//
// Created by mi on 2024/9/7.
//
#include <iostream>
template<typename T>
void f(T&& param)
{
    using std::cout;
    cout << "T =     " << typeid(T).name() << '\n';             //显示T

    cout << "param = " << typeid(param).name() << '\n';         //显示
}
int main(){
    //f(5);
    int a =9;
    f(a);
    f(9);
    return 0;
}